jovani
True Classic
I don't know if this solution will be useful for anyone, because I have access to lathe, TIG, sand blaster and rusty scrap tubes, so it cost me only $6 for bushings and 25 min start to finish (paint included), but here it is. Replaceable standard bushings and another problem solved forever. Shown in a vise with one bushing installed, squeezed to let swipe of urethane sealer to dry in "natural" position.